Will Dina Powell be named as the next US Ambassador to UN?

Nikki Haley's surprise resignation as the US ambassador to the United Nations raises the next question: Who is the next?

Trump has a shortlist of five names including Dina Powell, a close confidante of first daughter Ivanka Trump who served as Trump's deputy national security adviser for Strategy. Powell, who came to the White House from Goldman Sachs, was a favorite of Trump's before her resignation after a year.

Another name being discussed is the current ambassador to Germany, Rick Grenell. Trump told reporters later Tuesday on Air Force One en route to Iowa that Grenell is not in his shortlist but he would consider his candidacy.

Trump also mentioned Ivanka’s name telling she would be "incredible" as US Ambassador to the United Nations. However, Trump later told reporters that he would be "accused of nepotism" if he appointed her to succeed Haley.

Soon after the President's remarks, Ivanka Trump told on Twitter that she wouldn’t be the one to replace Haley.

Along with Grenell and Powell, other names being floated to replace Haley include U.S. Ambassador to Russia Jon Hunstman and Acting Under Secretary for Public Diplomacy and Public Affairs Heather Nauert.